Photographic camera.



UNITED STATES PATENT OFFICE.

ISAAC G. SIGLER, OF LOS ANGELES, CALIFORNIA, ASSIGNOR OF ONE-HALF .TONATHAN lV. TARR AND HARRY MCCOMB, OF KINGMAN, ARIZONA TER- RITORY.

vPHOTOG RAPHIC CAM ERA.

SPECIFICATION forming part of Letters Patent No. 632,431, datedSeptember 5, 1899.

Application led lune 5,1899. Serial No. 719.513. (No model.)

T @ZZ whom, t 'rn/ay concern:

Be it known that I, IsAAc G. SreLEn, a citi zen of the United States,residing at Los Angeles, in the county oi' Los Angeles, State ofCalifornia, have invented certain new and useful Improvements inPhotographic Cameras, of which the following is a specification.

The object of my invention is to provide a simple and improved apparatusthat will take a picture of an object which is above the plane of theinstrument as correctly as if it were on the same plane with theinstrument, which is easily adjusted, and which can be readily closed orfolded into compact form.

In the drawings, Figure l is a side elevation of my camera with thelens-holder and part of the back frame or rim removed to betterillustrate the adjusting mechanism. Fig. 2 is a bottom view of my camerawith parts removed, as in Fig. l, for the same reason.

Referring to the drawings, A is the back frame or rim, 'to which therear end of the focusing-bellows B is attached. z 5 C is thek -frontframe or riln, to which the front end of the bellows B is attached-andto which is also attached vthe lens-holder- (Not shown.)

D is the ground-glass frame aiiixed to the rear of the rim A.

E, E', and F. are three lazy-tongs of identical construction andattachment and are preferably placed at the sides and bottom of thebellows. v

A rod II encircles the front end 01"; the bellows just in the rear ofthe rim C, to which it is rigidly aiiixed at the corners only in anysuitable manner.

The lazy-tongs E, E', and E are attached to rod I-I by means of clips Iand J. Clips I are rotative on rod II, but have no sliding movementthereon, while the clips J both rotate and slide upon rod II when thelazy-tongs are being operated. In like manner the lazy 45 tongs areattached to rod L, which encircles the bellows near the rear thereof.Rod L is pivotally mounted in bearing M, aliixed to rim A.

The crank P, rotatively mounted in bear- 5o ings O, attached to rim A,has a screw-thread ed shank N, which carries the screw-threaded nut R,to which the bar S is pivotally attached at one end and to the bar T atthe other end. Bar T is pivotally attached to bell-cranks U. Thesecranks are pivotally mounted on bolts u, which project through thecranks and are secured in the rim A. Bell-cranks U are piv otallyattached to clips IV, slidably mounted on rod L.

The bar a is pivotally attached to the members f of the lazy-tongs at h,in the free end of which are one or more holes a', a, and 60". The levero has a longitudinal slot c for the reception of the stud h. This studpivots together, in the center, two members of the lazy-tongs andprojects beyond these members through the slot c, and thereby forms apivot on which the lever c oscillates. This longitudinal slot permits asliding movement of the lever on this stud. At the free end of the leverc is a thumb-piece c for manipulating the lever. A threaded opening in.the lever forms a receptacle into which the thumbscrewf is screwed afterpassing through the longitudinal slot g in the bar g, forming thereby apivot therefor and permitting an oscillatory and sliding motion of thebar g, which is pivotally attached to the lazy-tongs at 7L.

7o is a stud attached to clip I at the rear end of the lazytongs F andworks in grooved guide Z, this guide being attached to the bottom of rimA,at the center thereof,to prevent a sidewise movement of the lazy-tongswhile being operated.

It will be seen that as the lazyltongs are all attached to the rods IIand L in the same manner the rods II and L will always be parallel inwhatever position the lazytongs may be. It is by the manipulation ofthese lazytongs that the proper focus is attained. If the usual tripodis used, it is attached to the rim A in the usual manner, the rim Abeing preferably placed in'avertieal position. By means 0I thethumb-piece e, lever @,and bars a and g the lazy-tongs may beoperated-that is, contracted or expanded-as desired, thereby contractingor expanding the bellows B until the proper focus is obtained. IVhenthis is accomplished, the thumb-screw j" is IOO turned until the lever cand bar g are clamped tightly together, when the lazy-tongs will be heldagainst further movement. By this mechanism a simple, speedy, andeffective means of securing and retaining the proper focus is obtained.It may be stated that usually the rims A and C are parallel, in whichcase the rod L is parallel to the frame D.

It is sometimes desirable to take a picture of an object elevated abovethe plane upon which the camera rests. In such case it has beennecessary that the camera be tilted back. This throws the back frame orrim and sensitized plate outof the perpendieularand gives a picturenarrower at the top than at the bottom, which is very noticeable andobjectionable if the camera is near the object. By removing the cameraquite a distance away from the object being photographed this effect canbe largely but not wholly avoided; but the picture is not so clear ordistinct. W'ith my improved camera this is avoided, as the rear rim andsensitized plate may be adjusted vertically (which is the properposition for the sensitized plate to be in to produce the best picture)and the front rim, carrying the lensholder and lens, may be elevated.This is accomplished by rotating the screw-threaded shank N, so as tocause the bell-cranks U to move the bottom part of rod L forward or awayfrom the frame D. As the lazy-tongs are attached to the rods L and Il,to which latter rod is attached the front rim C, which carries thelens-holder and lens, it will be seen that the front rim C will bethrown upward and at an angle to the plane of the frame D and thesensitized plate, thereby permitting the image to be projected on thesensitized plate as though the object being photographed were on thesame plane as said plate.

I do not desire to limit myself to the lazytongs for changing theposition of the lensholder, as it is obvious that anyother device whichwill control the front rim may be substituted.

I-Iaving described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. A camera, comprising the focusing-bellows I3, carrying lens-holderrim C at its outer end, its rear end being attached to the rim A;lazy-tongs E for adjusting said bellows provided with thelongitudinally-slotted adjusting-lever c, carrying on one end thethumbpiece c and the other end pivotally attached to the bar a; the bara pivoted to the lazytongs at one end and having a plurality ofadjusting-holes at the other end; the slotted bar g pivoted to thelazy-tongs at one end and movably attached near the other end to thelever c; the thumb-screw f for gripping the lever c and bar g together;the rods H and L at the front and rear end of the bellows respectively;the crank P having screw-threaded shank N; nut R having screw-threadedopening adapted to receive shank IT and move thereon, and having rod Spivotally attached thereto; rod S forming a working connection betweenthe nut R and bar T; the cranks U pivoted at the center on the bolt uand rotatively attached at one end to bar T and at the other end to theclips XV; and the clips XV slidably mounted on rod L substantially asshown and described.

2. In a photographic camera, the combination of the following elements:the frame A, to which is attached the focusing-bellows B, adapted to beextended and contracted for adjusting the lens; the lazy-tongs Eattached to said bellows for extending and contracting the same, andprovided with mea-ns for adjustment, substantially as shown; rod L, towhich the rear end of the lazy-tongs is attached, the said rod beingpivoted to the frame at M and provided with means to cause the lowerside of the bar L to approach or recede from the frame D to change theangle of the lens with relation to the sensitized plate substantially asand for the purposes described.

3. In a camera, the crank P, having screwthreaded shank N;screw-threaded nut R on said shank; rod S pivoted at one end to said nutand at the other to rod T; rod- T having a crank U pivoted at each endthereof; oscillating cranks U pivotally attached to the frame A at a;the front end of the levers having a sliding attachment with rod L,carrying the rear end of the lazy-tongs and the rear end of the leversbeing pivoted to bar T, whereby the rotation of the crank I will tiltthe lazy-tongs and change the angle of the lens to the sensitized plate,substantially as shown and described.

4C. The herein-described device for adjusting the lazy-tongs of acamera, comprising lever c and bars a and g and the thumb-screws e, f"and d; the lever c being adjustably connected with bar g by thumb-screwf and having longitudinal slot c for the reception of stud 7L on whichthe lever c has a sliding movement; one end of the lever being pivotedto bar a, and the other end having thumb piece or screw e; bar a beingpivoted to the lazytongs at l) and having a plurality of holes at theother end for attachment to the lever c; thumb-screw cl for connectingbar a with lever c; bar g pivoted to the lazy-tongs at 7L and havinglongitudinal slot g for the reception of thumb-screw f for connectingbarg with lever c, substantially as shown and described.

5. The combination of the lazy-tongs E with the focus-adjustingattachment comprising the lever c, bars a and g, the said lever and barsbeing workably attached together and to the lazy-tongs as follows theadjusting-lever c, with longitudinal slot c', pivoted to bar a at oneend and having thumb-piece e at the other end, a stud 7L in slot c/mounted on the lazy tongs and forming a sliding attachment of the leverc with the lazy-tongs; the bar a being pivoted at one end to thelazytongs at b and having a plurality of holes, a', a, a'" near theother end` forming bearings IOO IIO

for the thumb-screw CZ on which the lever o is pivoted; the bar g havinglongitudinal slot g for the reception of the thumb-screw f for slidablyattaching bar g to lever c.

6. In combination with the lazy-tongs E, carrying the focus-adj ustinglever c and bars a and g, with the herein-described angle-ad justingdevice comprising the crank P, having screw-threaded shank N 5screw-threaded nut R; connecting-bar S, pivotally attached at one end toR and at the other to bar T; bar T being pivotally connected with bar Sand cranks U; cranks V pivotally mounted on studs u attached to frame A,one arnl of the cranks being pivoted to bar T and the other arm pivotedto clips W; clips W slidably e mounted on bar L and forming a workingconnection between the cranks and the bar; bar L,to which the lazy-tongs are connected,pivote ally mounted on the frame at M, whereby the `Las described and means to adjust and hold the lazy-tongs inthe adjustedposition substantiallyT as described.

In witness that I claim the foregoing I have hereunto subscribed myname, this 13th day of May, 1899, at Los Angeles, California.

ISAAC G. SIGLER.

IVitnesses:

G. E. HARPHAM, LEVI HARPHAM.

